> The current syntax establishes a relationship. > > X: Y > > means "X will have interface of Y". Note there's no mention of inheritance or > protocol here: they both establish this relationship. This is why we can use > > z is Y > > To check whether such relationship holds. Again, there's no need to worry > whether Y is a class or protocol.
Totally agree. You shouldn’t care if Y is a class or protocol. You might even want to convert a protocol to a class down the road. The current syntax is great, no need for changes. _______________________________________________ swift-evolution mailing list swift-evolution@swift.org https://lists.swift.org/mailman/listinfo/swift-evolution
